And Reddan is convinced that the RaboDirect PRO12 is out in front in terms of quality and competition.
"The Rabo is better. No matter what anyone thinks, I've played in both," Reddan told The Score.
"It's a better competition than the Premiership and it's a better competition than the French league.
"As far as the rugby, the strength and conditioning, the level of coaching, as far as I'm concerned I'm in the best competition, I'm in the best place for getting better every year, getting stronger every year, being in a condition to play all the time.
"The stars of the French league make it the market attraction but how many times to do see 6-3, 9-6 scorelines? I think the Rabo genuinely is a very tough competition.
"Sometimes it is batted down a bit which is a shame because I have definitely played in games where I have known how hard they are, I've played in a lot of tough games and I know how hard they are."
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